After the leaves are carefully examined, the leaves should not be rushed to whiten the trunk. First, the fruit trees should be thoroughly examined. The cuts of the fruit trees, the scars and the big branches should be checked, and the lesions and dead skins on the trees should be carefully and thoroughly scraped. After the application of the medicine, the whole tree is sprayed with a scavenger such as a stone sulphur mixture to protect the tree body, which is the key to prevention and treatment of rot in the coming year. Pruning tools should pay attention to disinfecting winter trees, cutting healthy trees first, then cutting trees with severe rot and disease, and paying attention to the disinfection of trimming tools. A variety of diseases can be transmitted through the pruning tool, to attract attention. The Qingyuan Garden should thoroughly clear the garden after the end of winter pruning, and remove the remaining leaves on the tree, the residual fruits, debris, fallen leaves and wounded branches on the ground, and then bury them or burn them in the orchard. After the clearing of the garden, spray the whole trees on the stone. The mixture is closed to the whole tree. It is very important that the fruit trees are white and freeze-proof. Many fruit growers think that whitening has the effect of preventing insects. In fact, the purpose of whitening is to prevent freezing. In the early 2 to 3 months of the natural dormancy period of fruit trees in early spring, the trunks and branches are exposed to direct sunlight, and the temperature rises, making the cells in the positive side of the tree active, and when the temperature drops rapidly, the fruit trees are vulnerable to freezing damage, especially young. Trees, weak trees and long trees. Whitening of the fruit trees can reflect the sunlight on the trunk, reduce the temperature difference between the day and night of the trunk, prevent the occurrence of freezing damage, and reduce the occurrence of rot in the spring. The correct method of whitening is to carefully scrape the disease spots on the fruit trees, dead skin and disinfect and then white, all the trunk and the main sun's sunny surface should be painted. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone Face Temperature Machine,Temperature Face Recognition,Face Recognition Temperature Scanner,Face Recognition Time Attendance Shenzhen Bio Technology Co., Ltd , https://www.huifantech.com